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Discussion Starter #1 (Edited)
Stuck in traffic today. 60 degrees but took 2.5 hours to move 4 miles because of accident. Engine very hot and Rear Cylinder Cutout kept coming on. Finally got moving but engine developed rattle. Took to dealer and they need to take engine apart to figure out rattle. 2016 RGS 7500 miles. Any thoughts? Thanks in advance.

Picked up the bike with SE255 cams and bearings; SE lifters; high pressure oil pump. Tune gave me torque of 101.25 at 3.5 and HP 81.92 at 5.25. Only slightly better than my original tune with stage 1 upgrade.

Drove home from dealer (5 miles) and the engine overheat protection switch engaged! oil was changed and kept using HD syn. 74 degrees. little traffic but most of ride was normal.

Could there be a block somewhere in the system that is preventing oil flow?
 

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That's hard to say. Excessive heat can damage a number of things, including pistons, cylinders, valves, guides, etc etc. Keep us posted on what they find please. Were you idling the whole time or did you shut it down at all?
Lil Chief
 

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Stuck in traffic today. 60 degrees but took 2.5 hours to move 4 miles because of accident. Engine very hot and Rear Cylinder Cutout kept coming on. Finally got moving but engine developed rattle. Took to dealer and they need to take engine apart to figure out rattle. 2016 RGS 7500 miles. Any thoughts? Thanks in advance.
Sounds like an issue with the Sensor that when activated, shuts the rear Cyn off (forget the name of it) - You can check by hitting the Info Button on the right Control to see if the last commas is "Enabled or Disabled"
 

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You have a lot more patience than I do. I would never had sat more than about 10 minutes before filtering, or riding the breakdown lane, or just pulling over and waiting it out if the other two options could not be performed.
Break out my reflective vest, turn on the flashers and act like I am needed at the source of the traffic jam. I have even passed LEOs stuck in traffic without issue when I do this.
I would bring it to the dealer, but not share how long you idled the bike. Most Owners Manuals have statements about not idling more than 5 minutes or so.
 

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Discussion Starter #5
Update HD Design Billet Oil Cooler

Thanks for the great comments and insight. Turns out the lifters "failed" and they have to be replaced along with the cams and bearings. I tried for a crate engine but was assured that I would be safe with the fix. Decided to install SE255 cams, Highflow oil pump and SE lifters and cam bearings per HD suggestion. The dealer has been really helpful and honest with me (this is my second HD with them) and I went with the changes. All in at $1,000 (includes tuning).

Next time I am stuck in traffic I will follow some of the suggestions offered here!

Has anyone heard of this?

Harley Davidson Design Billet Oil Cooler. No tools to install. For Twincam. Touring necessity
by Final Touch Products, Inc.
4.0 out of 5 stars 38 customer reviews | 15 answered questions
Price: $40.00 Free Shipping for Prime Members
Only 17 left in stock.
Want it Tuesday, Sept. 13? Order within 43 hrs 6 mins and choose One-Day Shipping at checkout. Details
Sold by Kevin McDonald and Fulfilled by Amazon. Gift-wrap available.[/B][/I]
 

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It was good to get the high flow oil pump. OEM pumps do not put out much pressure at idle, as I can recall about 6 psi . The high flow pump should be about 10 to 12 psi at idle, about 36 to 45 at speed. Much better if you sit in traffic occasionally. The oil cooler sound like a good idea as well. Don't know much about it though.
 

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Well with the quality of the lifters that HD is using I am not surprised that they failed due to extreme heat, most likely the heat weakened the springs and that led to the failure.
In all reality there was no need to upgrade to the high volume oil pump because under normal riding conditions the the stock oil pump works just fine.
Just remember that when the EITMS (Engine Idle Temperature Management System) engages that the engine front cylinder head temp has reached 290 +/- and in most cases the engines oil is real close to the same temp. Also you may want to take into consideration that the engine temp is taken from the front cylinder head and that the rear cylinder is hotter then the front. If these condition happen again you can Idle the bike for about 10 minutes after the EITMS starts to shut off the rear cylinder after that it would be a wise decision to shut off the bike if traffic is at a stand still or if traffic is moving slowly then pull over and let the bike cool or ride slowly in the breakdown lane.
A larger oil cooler such a Jagg 10 row oil cooler with a fan assist will help some if your ride in stop and go city traffic often but in most cases if you don't experience traffic problems a Jagg 10 row oil cooler without the fan will work just fine. Your bike already has a HD 6 row oil cooler and IMO the Jagg oil coolers are a much better cooler and if you're going to upgrade the oil cooler the Jagg is the way to go
 

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It was good to get the high flow oil pump. OEM pumps do not put out much pressure at idle, as I can recall about 6 psi . The high flow pump should be about 10 to 12 psi at idle, about 36 to 45 at speed. Much better if you sit in traffic occasionally. The oil cooler sound like a good idea as well. Don't know much about it though.
On a 95 degree day idle I'm at 14 - 16 psi and above 1500 rpm 34 - 36 psi.
 

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Being an air/oil cooled engine, extended idling, without air passing over it, and lower oil pressure at idle, engine damage can CERTAINLY occur.
Not like an automobile with a liquid system/radiator/fan/thermostat.
Scott
 

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I just upgraded mine at 32,000 miles. New lifters, cam plate, high flow oil pump and rocker lockers. Amazing how quiet the engine is now. So glad I did it, got caught in horrible traffic for 30 minutes up in Branson, and I think my Harley lifters would have given me trouble.
 

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Discussion Starter #12
see update
 

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One of the best, if not the best cooler, on the market today is an Ultra Cool.
Recently sent a 124" home to NJ (139/151)with a Jagg frame-mounted 10 row.
Temps never crested 180* during his 4 hr. interstate crusing speeds as per his info relayed to us.
Scott
 
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